Removable cover for vessels.



No. 673,957. Patented my I4, 19m.

.1. a w. B. L ANGL REMGVABLE COVER FOR YESSELS. (Ap licatior. filed Jan. 11, 1901.)

V I $762273; %i@%w@ llNTTna STATES PATENT OFFICE.

JOSEPH LANG AND WILLIAM B. LANG, OF CHICAGO, ILLINOIS.

REMOVABLE COVER FOR VESSELS.

SPECIFICATION forming part of Letters Patent No. 673,957, dated May 14, 1901.

Application filed January 11, 1901. Serial No. 42,828. (No model.)

T0 [0 whom it may concern:

Be it known that we, JOSEPH LANG and IVILLIAM B. LANG, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Removable Covers for Vessels, of which the following is a specification.

This invention relates to improvements in removable covers to be used on vessels-such as vats, tanks, casks, and thelikeand while it is more especiallyintended for use on pickling vats or vessels employed in slaughtering establishments for pickling meat, yet it is applicable for vessels used for other purposes; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

One object of our invention is to provide a removable cover for vessels which shall be simple and inexpensive in construction and strong, durable, and readily secured in position, so as to render the vessel air-tight and easily removed.

Another object is to so construct the cover that almost the entire upper portion or the end of the vessel will be open for the insertion and removal of the contents thereof when the cover is removed.

Other objects and advantages willappear in the subjoined description and explanation.

In order to enable others skilled in the art to which our invention pertains to make and use the same, we will now proceed to describe it, referring to the accompanying drawings, in whicl1 Figure l is a plan view of a vessel with our cover in position thereon; and Fig. 2 is an enlarged sectional view, taken on line 2 2 of Fig. 1, looking in the direction indicated by the arrows.

Similar letters refer to like parts in both views of the drawings.

A represents the vessel, which in the present instance is shown as being cylindrical and in the shape of a barrel, but which may be of any suitable size, form, and material.

The inner surface of the chime of the vessel is provided with a chamfer or circumferential groove ct to receive the circumferential rib b on the periphery of a ring B, which is preferably made of iron or other suitable metal and of a size to fit closely theupper portion of the vessel. As shown in Fig. 2 of the drawings, the outer surface of the ring B is slightly rounded, so that it may be easily placed in position, and the inner periphery of said ring is formed with a downwardlyinclined surface 0, which extends to near the bottom of the ring. The lower portion of the inner periphery of the ring is formed or provided with a circumferential rib d, which is located a slight distance from the bottom of the inclined portion a, so as to form an annular groove 6 to receive an annular projectiou or rib e on the cover proper, E, which is preferably made of a series of boards 6 held together by means of cross-pieces e or otherwise. The inner lower portion of the ring B is inclined downwardly to engage the upwardly-inclined surface of the projections or hooks g on the rods F, as will be presently explained.

The bottom of the cover E is provided with an annular groove 6- to receive the annular rib d on the lower inner portion of the ring B. Passing through suitable openings in the cover E are a series of rods F, which have on their lower ends lateral projections g, with their upper surfaces upwardly inclined. The upper portion of each of the rods F is screwthreaded, and the u pperend thereof is formed angular, so as to be easily engaged with a wrench or other instrument used for turning said rods. Located on each of the rods F is a nut G, which is employed for tightening the rod or bolt. On the periphery of the cover E may be secured a piece of cloth h to cause a close joint, so as to prevent the passage of air between the cover and the ring.

To secure the cover in position, the ring B is first placed in the open end of the vessel A, when the rib b on the cover will fit in the groove a in the chime of the vessel. When the ring is thus located, the cover proper, E, is placed within the ring and may be secured in position by turning the rods or bolts F so that the projections 9 will rest under the lower surface of the ring, when by tightening the nuts G the cover will be securely retained in position. When it is desired to remove the cover, the nuts may be loosened and the bolts or rods F turned so that the projections g on their lower ends will be disengaged from the rlng.

The cover proper may be provided with a bunghole, through which liquid may be poured into the vessel without removing the cover.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

The combination with a vessel having on the inner surface of its chime, a circumferential chamfer or groove, of a ring having its outer surface rounded and provided with a circumferential rib to fit within the groove of the vessel and provided on its inner periphery with an inwardly and downwardly inclined surface, a circumferential groove at the bot- JOSEPH LANG. WILLIAM B. LANG.

Witnesses: CHAS. G. TILLMAN,

A. GUSTAFSON. 

